[edit] Found a more complete, higher resolution version: http://pdfcast.org/download/apple-1-schematic-scan.pdf (you do need to click the download button, and enter a captcha. but it's worth it)
[edit 2] As for the motherboard itself, photos of many Apple Is are available here: http://www.willegal.net/appleii/apple1-originals.htm
[edit] Found a more complete, higher resolution version: http://pdfcast.org/download/apple-1-schematic-scan.pdf (you do need to click the download button, and enter a captcha. but it's worth it)
[edit 2] As for the motherboard itself, photos of many Apple Is are available here: http://www.willegal.net/appleii/apple1-originals.htm